I'm not familiar with Bradley Lake trail. Most of my Bob experiences are in the Rocky Mountain Ranger District as those areas are closer to my home. It does appear that trail maintenance ends at Bradley Lake however. I checked the more recent USFS map and the map in my Avenza Maps app. On those maps the trail ends at Bradley Lake and no trail is shown beyond the lake. Older 7 1/2 minute quadrangle topographic maps have many errors in trails. Trails are shown that no longer exist or trails are shown where they used to be before they were relocated. The USFS lost many trails in the floods of 1964 and 1975 and in more recent years. There was a concerted effort to relocate those trails that followed stream bottoms to areas higher up on the slopes. Trails that do not appear on the more recent USFS maps, for the most part, are either extremely difficult to follow or no longer exist. One or two may have never existed except in the imagination of the person drawing them on the map. The Bradley Lake trail is shown as "Unknown" (yellow) on the USFS interactive map (see below). That means it was most likely not cleared in 2018. There is also the possibility that it was not cleared in the previous year as well.
In my opinion the best maps of the Bob Marshall Wilderness Complex are produced by Cairn Cartographics. Their topographic maps are plastic coated, show shaded relief, have mileages indicated between most junctions and differentiate between regularly maintained trails and those trails where maintenance is less frequent. They can be ordered here:
https://cairncarto.com/maps/
Trail conditions in the Bob Marshall Wilderness Complex are provided on this USFS site:
https://usfs.maps.arcgis.com/apps/webap ... 2668930663
After clicking the link give the map time to load. It's a complex map and depending on your internet connection it might take some time. You'll know you're almost there when you get the popup window to agree to the terms of use.
Turn on the legend if it does not appear by clicking on the three lines in the upper left corner. Zoom in to the area you are interested in and click on the trail. Or do a search for the trail number or name. Be advised that the Bob Marshall Wilderness Complex extends across two (formerly three) different National Forests. Because of that trail numbers might be duplicated in two or more ranger districts. When doing a search for a trail number you might see a listing in two or more trails with the same number. Click on each one at a time to and the one you are interested in.
A green trail has been cleared while a yellow trail (shown as Unknown in the legend) generally means it has not been the cleared. All trails should be shown "Unknown" at the beginning of a season but this is often not the case. But if the trail is shown cleared it probably was cleared in the current year (if late in the season) or in the previous year (if early in the season. The trail may not have required clearing either in which case it will be shown as "cleared." It takes time for clearing info to reach the mapping person so there is a time lag between actual clearing of the trail and the trail being shown as cleared on the map. The date of clearing usually is provided with other details when you click on a trail. One thing to watch for is that there may be more than one info panel for a trail. Look for the black triangle and click it to move to another info panel. A yellow trail may be infrequently maintained and may not have been cleared in several years. Trails through previous burns are often nightmares of deadfall.
Hope this helps,
Ralph
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