Cat and Thomas Mountain Trail is a 7.3 mile heavily trafficked loop trail located near Bolton Landing, New York that features a river and is rated as moderate. The trail offers a number of activity options and is best used from April until November. Dogs are also able to use this trail but must be kept on leash.
This hike is on a nature preserve made possible by the Lake George Land Conservancy. The trail coincides with the the Thomas Mountain trail up to a clearing some 0.75 miles from the trailhead. Both mountains have far range views, especially on a clear day, and Lake George is easily seen.
Perfect day for hiking. Very few muddy spots; mostly nice and dry! Went up Thomas first and it was UP for someone (me!) that is a bit out of hiking shape. Sad that the cabin on Thomas is gone, but it still offered decent views. Cat was easier ascent-wise for me, but there were a couple places where the trail didn’t have the best marker placement or frequency, so I was glad to have All Trail running to confirm where to go.
Loved the views on Cat ! Underestimated the hike to Thomas after the cakewalk up to Cat- lots of up/downs. Beautiful hike though! Completed in 3 hours 38 minutes, and that’s with going the wrong way down the trail for a bit. Keep an eye out for a left into the woods when coming down Cat to get to Thomas- it’s well marked with trail markers I just missed it !
View from Thomas was very pretty. View from Cat was spectacular. We hiked the loop counter clockwise. Trail up was good, but muddy and icy. We were able to avoid the ice and snow. Some steep sections but nothing too difficult. The trail coming down from Cat was very muddy and rocky for about 1/4 of a mile. I did feel like I was walking in a stream bed the whole way back. I don’t think the mileage marker signs are correct. Our hike was 8.76 miles, not 7 as AllTrails said. Also I started and wound up stopping all trails by mistake. So all trails mileage is not right. But Strava said it was 8.76 miles
Little snow, ice in spots ground thawing and mushy on the road. Trail through the woods wonderful. Are use my Christmas lights in some spots bear Boudet the rest and carry snow shoes. 
On 3/23 the trail head at Valley Woods road was icy/snowy but packed. Headed to Cat, the trail was still packed snow, and micro spikes were needed for parts of the trail. Note the blue trail markers make a "right" after you get through the hardwood section of elevation. Top of Cat is gorgeous! The trail to Thomas (yellow markers) is up and down with lots of roots and rocks. Pay attention, the markers are spaced but you can follow them. The trail was snowless in some areas, ice in others. Microspikes on and off to the top! We did not see a cabin at the summit of Thomas. This is the reason for 4 instead of 5 stars... :-( The trail going down from Thomas was a logging road, and all downhill until you get to the intersection of the blue trail. A mix of snow and ice.
Tightly packed single-file trail with tons of ice. Micro spikes are a must. Saw one other dude on the trail, but otherwise had it all to my dog and myself! Beautiful trail and a beautiful day for a hike :)
Parts of the trail between cat and thomas are melted but the rest is still solid. Spikes needed for most of it
It was a beautiful bluebird day, packed single file trail with some icy spots obviously this time of year micro spikes will help I didn’t need my snow shoes at all Cat Mountain is perfect for sunrises and sunsets!! don’t forget about the cabin on Thomas mountain!!!
Snowshoed to Cat and then took the connector trail to Thomas. The trail from the trailhead to Cat, and from Thomas to the trailhead is well packed. The spur between Cat and Thomas is in good shape, but less well pack.
Super fun conditions, the summits were clear and Sunny, perfect for short rests for food and the views. A great day!
Be careful following this app ... it’s not updated with the new trail going to Cat ... I have done this loop 5 or more times in my years and it’s been switched up... I’m guessing due to the over use from the summer... so please plan accordingly and don’t lose time or get lost... other wise it’s still my favorite in any season